We consider the estimation of the location of the pole and memory parameter, λ0 and α respectively, of covariance stationary linear processes whose spectral density function f(λ) satisfies f(λ) ∼ C|λ − λ0|−α in a neighbourhood of λ0. We define a consistent estimator of λ0 and...

Order selection based on criteria by Akaike (1974), AIC, Schwarz (1978), BIC or Hannan and Quinn (1979) HIC is often applied in empirical examples. They have been used in the context of order selection of weakly dependent ARMA models, AR models with unit or explosive roots and in the context of...

We frequently observe that one of the aims of time series analysts is to predict future values of the data. For weakly dependent data, when the model is known up to a finite set of parameters, its statistical properties are well documented and exhaustively examined. However, if the model was...

We show that it is possible to adapt to nonparametric disturbance autocorrelation in time series regression in the presence of long memory in both regressors and disturbances by using a smoothed nonparametric spectrum estimate in frequency-domain generalized least squares. When the collective...

For linear processes, semiparametric estimation of the memory parameter, based on the log-periodogram and local Whittle estimators, has been exhaustively examined and their properties are well established. However, except for some specific cases, little is known about the estimation of the...

We examine a test for the hypothesis of weak dependence against strong cyclical components. We show that the limiting distribution of the test is a Gumbel distribution, denoted G(·). However, since G(·) may be a poor approximation to the finite sample distribution, being the rate of the...

This chapter considers a probabilistic reasoning based investigation of an information system concerned with consumer choice. The DS/AHP technique for multi-criteria decision making is employed in this consumer analysis, and with its development formed from the Dempster-Shafer theory of evidence...

Purpose - The purpose of this paper is to investigate "tribal" consumption behaviour and its relationship to branding, in the particular context of the surfing community in Portugal. Design/methodology/approach - Two focus group meetings with "surfers" and "fans" respectively, in April 2006,...

How brand slogans can influence and change the consumers’ perception of image of products has been a topic of great interest to marketers. However, it is a non-trivial task to evaluate how brand slogans affect their customers’ emotions and how the emotions influence the customers’...

Purpose: This study examines the equivalence of the use of a customer satisfaction survey in four culturally divergent contexts. Design/methodology/approach: It is based on 6,776 responses collected from fast food customers in Greece, Jamaica, the UK and the USA. Findings: The results reveal...